CN113501362A - Novel printing medium transmission device - Google Patents

Abstract

The invention relates to a novel printing medium conveying device which comprises a main transmission mechanism arranged on a supporting frame, wherein the main transmission mechanism comprises a main transmission roller, a first brake roller and a second brake roller, the main transmission roller is used for driving a printing medium to move in a stepping mode, and the first brake roller and the second brake roller are used for guiding and braking the printing medium; the rear side of the main transmission mechanism is provided with a discharging mechanism used for discharging the printing medium; a first tension adjusting mechanism is arranged between the main transmission mechanism and the discharging mechanism and used for adjusting the tension of the printing medium released by the discharging mechanism; a material receiving mechanism is arranged below the material discharging mechanism; a second tension adjusting mechanism is arranged between the main transmission mechanism and the material receiving mechanism and used for adjusting the tension of the printing medium before entering the material receiving mechanism; a plurality of guide rollers are arranged between the discharging mechanism and the receiving mechanism. The invention has the advantages of high stepping control precision, convenient carrying and transportation, high parallelism among rollers and high printing medium transmission stability.

Description

Novel printing medium transmission device

Technical Field

The invention relates to the technical field of ink-jet printing equipment, in particular to a novel printing medium conveying device.

Background

The printing modes of the ink jet printer are classified into a scanning type and a one-pass type. The scanning type printing mode means that the printing medium in the printing area is static during printing, the printing is scanned and printed along the transverse direction through the printing trolley, and the printing medium moves longitudinally and stepwise relative to the printing trolley after the scanning is finished so as to prepare for the next transverse scanning and printing, so that the printing of the whole pattern is completed in this way; the one-pass printing mode means that the printing trolley is still and the whole pattern is printed by the longitudinal movement of the printing medium. The scanning type printing comprises roll-to-roll type ink-jet printing and flat-table type ink-jet printing, in the roll-to-roll type ink-jet printing, the transverse scanning of a printing trolley and the longitudinal stepping of a printing medium are used for completing the printing of patterns, in the printing process, the printing medium in a printing area needs to keep enough tension to enable the printing medium to be flat and not deformed, so that a printing finished product with higher quality is obtained, and the influence of the control precision of stepping motion on the printing quality is great.

In the related art, a printing medium drives a tape dispensing adhesive type and a friction drive type. The conduction band adhesive of the conduction band sticking type has compatibility problem with a printing medium, cannot be applied for a long time and is high in price; in the friction driving type, in the current application, the friction force between the rubber roller and the printing medium intermittently pushes the printing medium forwards in a stepping manner, and the friction force of the rubber roller and the printing medium are combined with the action of a front tension roller to overcome the defect that the suction force at the adsorption air suction platform drives the printing medium to move. Due to the characteristic of softness of the printing medium, the printing medium is deformed microscopically and slips relatively due to the change of friction force between the printing medium and the roller body in the driving process, so that the movement precision of each time is inconsistent, and the problem of printing output quality is caused. To solve this problem, chinese patent CN208085281U discloses a printer, which includes an unwinding mechanism for releasing a printing medium; a transition roller for conveying the printing medium; an air suction platform for supporting the print media from the transition roller; the printing head is movably arranged above the air suction platform and is used for jetting ink to the printing medium on the air suction platform; the vacuum driving roller is used for generating adsorption force to convey the printing medium conveyed from the air suction platform so as to synchronously drive the printing medium to move; and a winding mechanism for recovering the printing medium transferred from the vacuum driving roller. In the prior art, the vacuum driving roller is arranged, so that the printing medium is adsorbed on the vacuum driving roller and cannot generate relative displacement, and the stepping driving precision of the printing medium is kept constant. However, this technique has the following problems: the printing medium is released from the unwinding mechanism, passes through the transition roller, is arranged above the air suction platform and moves in a stepping mode under the action of the pulling force of the vacuum driving roller, the transition roller comprises a first guide roller, a driving roller and a second guide roller, the printing medium passes through the first guide rail, is conveyed to the second guide roller under the driving of the driving roller to be discharged and is conveyed to the air suction platform under the action of the second guide roller, although the printing medium is adsorbed on the vacuum driving roller and cannot generate displacement towards the direction of the winding mechanism, the driving roller, the second guide roller and the unwinding mechanism have certain inertia under the pulling of the printing medium, when the vacuum driving roller stops rotating, the driving roller, the second guide roller and the unwinding mechanism cannot stop rotating on time, so that the stepping precision of the printing medium before entering the vacuum driving roller cannot be controlled, and the printing medium is easy to generate tiny concave-convex deformation on the air suction platform before the vacuum driving roller due to the too small tension, affecting print quality.

The large roll-to-roll type ink-jet printer has the advantages that the printing speed is high, the ink on the surface of the printing medium is completely dried before the material is collected, the printing medium after printing is finished is usually distributed through a long path and then is collected into a material roll by the material collecting mechanism, and the material conveying device is large in size, inconvenient to convey and capable of increasing the conveying cost. The support frame of the printing medium arrangement structure in the prior art is formed by assembling a plurality of plates, and the printing medium is deviated along the axial direction of the roller in the movement process due to the fact that a long printing medium arrangement path is caused by errors generated by assembly, so that the printing pattern is deviated, and the printing quality is influenced.

For a large roll-to-roll ink-jet printer, the diameter of a material roll is large, the weight of the material roll is heavy, the diameter of a discharging roll is continuously reduced along with continuous release of a printing medium, so that the discharging speed needs to be increased from slow rotation to guarantee a relatively constant discharging speed, and similarly, the diameter of a receiving roll is continuously increased along with continuous receiving, and the receiving speed needs to be increased from fast rotation to slow rotation to guarantee a relatively constant receiving speed; otherwise, if the material receiving and discharging speed is too high, the inertia of the rotary motion of the material receiving and discharging roll can be increased, and the material discharging roll cannot accurately stop rotating when braking; if the material receiving and discharging speed is too low, the material receiving and discharging operation cannot be completed before the next scanning and printing task starts, and the printing-stepping-printing rhythm cannot be met, so that the printing quality is influenced due to the fact that the printing medium still moves in the printing process.

In summary, the prior art has the following problems:

1) inaccurate stepping precision control causes the printing medium to generate tiny concave-convex deformation, which affects the printing quality;

2) the feeding device is bulky and inconvenient to transport;

3) the long printing medium arrangement path causes the printing medium to generate transverse deviation in the moving process, thereby causing the deviation of a printing pattern and influencing the printing quality;

4) the rotation speed of the material receiving and releasing roll of the large roll-to-roll ink-jet printer is too high, so that the inertia of the material receiving and releasing motion is increased, impact is caused on a printing medium, the braking of the printing medium is influenced when printing is carried out, and the printing beat cannot be met due to too low rotation speed, so that the printing quality is influenced.

Disclosure of Invention

The invention aims to provide a novel printing medium conveying device to solve the defects in the prior art, and the technical problem to be solved by the invention is realized by the following technical scheme.

A novel printing medium conveying device comprises a main transmission mechanism arranged on a supporting frame, wherein the main transmission mechanism comprises a main transmission roller, a first brake roller and a second brake roller, the main transmission roller is used for driving a printing medium to move in a stepping mode, and the first brake roller and the second brake roller are respectively arranged behind and in front of a printing area and used for guiding and braking the printing medium; a discharging mechanism is arranged at the rear side of the main transmission mechanism and used for discharging a printing medium; a first tension adjusting mechanism is arranged between the main transmission mechanism and the discharging mechanism and used for adjusting the tension of the printing medium released by the discharging mechanism; a receiving mechanism is arranged below the discharging mechanism and used for recovering the printed printing medium; a second tension adjusting mechanism is arranged between the main transmission mechanism and the material receiving mechanism and used for adjusting the tension of the printing medium before entering the material receiving mechanism; a plurality of guide rollers are arranged between the discharging mechanism and the receiving mechanism and used for guiding and conveying the printing medium; the discharging mechanism, the first tension adjusting mechanism, the second tension adjusting mechanism, the receiving mechanism and the guide roll are respectively installed on the wallboard.

Preferably, the wallboard is including being located left front wallboard, the right front wallboard of braced frame's the below left and right sides and being located respectively left back wallboard, the right back wallboard of right front wallboard rear side, first tension adjustment mechanism second tension adjustment mechanism install in between left front wallboard and the right front wallboard, drop feed mechanism with receiving mechanism installs between left back wallboard and right back wallboard, left side front wallboard right front wallboard respectively with detachable the connection between left back wallboard, the right back wallboard.

Preferably, one side of the main driving roller is provided with a first motor, and the other side of the main driving roller is provided with an encoder.

Preferably, a brake is attached to at least one end of the first brake roller, and a brake is attached to at least one end of the second brake roller.

Preferably, the discharging mechanism comprises a discharging roller, a second motor is installed at one end of the discharging roller, a speed reducer I is installed between the second motor and the discharging roller, the discharging mechanism comprises a distance measuring sensor I which is used for detecting the diameter of a printing medium wound on the discharging roller, and the distance measuring sensor I is connected with the speed reducer I and the second motor.

Preferably, the first tension adjusting mechanism includes a tension roller I, the tension roller I is mounted on the wall board through a bracket I, a sliding groove I is arranged on the inner side of the bracket I, two end portions of the tension roller I are mounted in the sliding groove I and can move in the sliding groove I, and the first tension adjusting mechanism includes a position sensor I for detecting the height of the tension roller I.

Preferably, the receiving mechanism comprises a receiving roller, a third motor is installed at one end of the receiving roller, a speed reducer II is installed between the third motor and the receiving roller, the receiving mechanism comprises a distance measuring sensor II which is used for detecting and winding the diameter of a printing medium on the receiving roller, and the distance measuring sensor II is connected with the speed reducer II and the third motor.

Preferably, the second tension adjusting mechanism comprises a tension roller II, the tension roller II is installed on the wallboard through a support II, a sliding groove II is formed in the inner side of the support II, two end portions of the tension roller II are installed in the sliding groove II and can move in the sliding groove II, and the second tension adjusting mechanism comprises a position sensor II used for detecting the height of the tension roller II.

Preferably, the guide roller comprises a first guide roller arranged between the discharging mechanism and the first tension adjusting mechanism, a second guide roller arranged between the first tension adjusting mechanism and the main transmission mechanism, and a third guide roller, a fourth guide roller and a fifth guide roller which are sequentially arranged between the second tension adjusting mechanism and the material receiving mechanism.

Preferably, the support frame is an integrally formed structure.

The invention has the following beneficial effects:

1) the stepping control precision is high; after the discharging and receiving are stopped, the printing medium has proper tension under the regulation of the tension regulating mechanism and stops moving, before printing, the printing medium in the printing area is further locked through the braking action of the first brake roller and the second brake roller, and the phenomenon that the printing medium slides between the rollers after stepping to generate tiny movement, so that deformation is generated, the printing quality is influenced, the flatness of the printing medium in the printing area is ensured while the stepping control precision is improved, and the printing effect is better;

2) the carrying and the transportation are convenient; the left front wallboard and the right front wallboard are detachably connected with the left rear wallboard and the right rear wallboard respectively through connecting plates, the distance between the left front wallboard and the right front wallboard is adjustable, and the left rear wallboard, the right rear wallboard, and the discharging mechanism and the receiving mechanism which are arranged on the left rear wallboard and the right rear wallboard can be detached and separately transported;

3) the parallelism among the rollers is high, and the printing medium does not deviate; the supporting frame of the integrated structure is machined through a numerical control machine after being cast, machining precision, namely mounting precision is achieved, other assembling process errors are avoided, the wallboard is a machined plate and is directly mounted below the supporting frame, and therefore the mounting parallelism of the rollers is higher;

4) the printing medium has high transmission stability; the setting of range finding sensor I and range finding sensor II for the linear velocity of the printing medium on blowing roller and the receipts material roller maintains at the value of relatively invariable, has solved among the prior art too fast to the impact of printing medium, the too slow receipts blowing that leads to of speed of receiving the blowing roller untimely, can't satisfy the problem of printing the beat.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of a printing medium according to the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic side view of the main transmission mechanism of the present invention;

FIG. 5 is a schematic view of the present invention in an assembled configuration in a printer;

the reference numbers in the drawings are, in order: 1. supporting frame, 2, printing platform, 3, main transmission mechanism, 31, main transmission roller, 32, first brake roller, 33, second brake roller, 34, brake, 35, first motor, 36, encoder, 361, magnetic ring holder, 362, magnetic grid ring, 363, magnetic grid reading head, 4, discharging mechanism, 41, discharging roller, 42, second motor, 43, speed reducer I, 44, distance measuring sensor I, 5, first tension adjusting mechanism, 51, tension roller I, 52, support I, 521, sliding groove I, 53, position sensor I, 6, second tension adjusting mechanism, 61, tension roller II, 62, support II, 621, sliding groove II, 63, position sensor II, 7, material receiving mechanism, 71, material receiving roller, 72, third motor, 73, speed reducer II, 74, distance measuring sensor II, 8, guide roller, 81, first guide roller, 82, second guide roller, 83, The device comprises a third guide roller, a fourth guide roller, a fifth guide roller, a right front wallboard, a left front wallboard, a right rear wallboard, a right front wallboard, a left rear wallboard, a connecting plate and a connecting plate, wherein the fifth guide roller is 85, the fifth guide roller is 91, the right front wallboard is 92, the left front wallboard is 93, the right rear wallboard is 94, and the left rear wallboard is 10.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1:

a novel printing medium conveying device is improved in that: the device comprises a main transmission mechanism 3 arranged on a support frame 1, wherein the main transmission mechanism 3 comprises a main transmission roller 31, a first brake roller 32 and a second brake roller 33, the main transmission roller 31 is used for driving a printing medium to move in a stepping mode, and the first brake roller 32 and the second brake roller 33 are respectively arranged behind and in front of a printing area and used for guiding and braking the printing medium; the rear side of the main transmission mechanism 3 is provided with a discharging mechanism 4 for discharging a printing medium; a first tension adjusting mechanism 5 is arranged between the main transmission mechanism 3 and the discharging mechanism 4 and used for adjusting the tension of the printing medium released by the discharging mechanism 4; a receiving mechanism 7 is arranged below the discharging mechanism 4 and used for recovering the printed printing medium; a second tension adjusting mechanism 6 is arranged between the main transmission mechanism 3 and the material receiving mechanism 7 and used for adjusting the tension of the printing medium before entering the material receiving mechanism 7; a plurality of guide rollers 8 are arranged between the discharging mechanism 4 and the receiving mechanism 7 and used for guiding and conveying the printing medium; the discharging mechanism 4, the first tension adjusting mechanism 5, the second tension adjusting mechanism 6, the receiving mechanism 7 and the guide roll 8 are respectively installed on the wall board.

In this embodiment, as shown in fig. 5, a printing platform 2 is disposed on the supporting frame 1, the printing platform 2 is an air suction platform, and has a certain adsorption effect on the printing medium, a guide rail beam is erected above the supporting frame 1, a printing trolley is mounted on the guide rail beam, and the printing trolley is located above the printing platform 2 and ejects ink onto the surface of the printing medium on the printing platform. As shown in fig. 1 and 2, the main driving roller 31 is disposed behind the printing platform 2, the first braking roller 32 is disposed in front of and below the main driving roller 31, the second braking roller 33 is disposed in front of the printing platform 2, the moving path of the printing medium passes through the discharging mechanism 4, the first tension adjusting mechanism 5, the first braking roller 32, the main driving roller 31, the second braking roller 33, the second tension adjusting mechanism 6 and the receiving mechanism 7 in sequence, wherein a plurality of guide rollers 8 are arranged according to the requirement, the guide rollers 8 are used for guiding the moving route of the printing medium, so that the printing medium and each roller have a proper wrap angle, so that a certain friction force is formed between the printing medium and each roller, which is convenient for the transmission and braking of the printing medium, and the first tension adjusting mechanism 5 and the second tension adjusting mechanism 6 can both move downwards under the action of gravity and move upwards under the action of the tension of the printing medium during the material receiving and discharging.

The working process of printing medium transmission during printing is as follows:

the method comprises the following steps: adjusting the first tension adjusting mechanism 5 to the lowest end and the second tension adjusting mechanism 7 to the highest end so as to make the path of the printing medium before printing longest and the path of the printing medium after printing shortest;

step two: locking the printing medium located in the printing area by the braking action of the first brake roller 32 and the second brake roller 33;

step four: scanning and printing;

step five: the braking of the first brake roller 32 and the second brake roller 33 is released after the printing is completed;

step six: the printing medium moves a set stepping distance under the driving of the main driving roller 31, and the main driving roller stops rotating;

step seven: and repeating the second step to the sixth step until the main driving roller 31 stops rotating when the first tension adjusting mechanism 5 moves upwards to the uppermost end or the second tension adjusting mechanism 6 moves downwards to the lowermost end, and executing the first step.

In the first step, the main driving roller is in a static state, the first tension adjusting mechanism 5 can move downwards to the lowest end through continuous discharging of the discharging mechanism 4 and continuous receiving of the receiving mechanism 7, and the second tension adjusting mechanism 7 moves upwards to the highest end; step seven, along with the stepping movement of the printing medium, the first tension adjusting mechanism 5 continuously moves upwards, and the second tension adjusting mechanism 6 continuously moves downwards, so that the printing medium is always under the proper tension and keeps flat; when the first tension adjusting mechanism 5 moves upwards to the uppermost end or the second tension adjusting mechanism 6 moves downwards to the lowermost end, the tension adjusting mechanism has no adjusting space, and therefore the first step needs to be executed again.

The novel printing medium transmission that this embodiment provided device, the blowing stops with receiving the material after, the printing medium has suitable tension under tension adjustment mechanism's regulation, and stop moving, before printing, the braking action through first brake roller 32 and second brake roller 33 will be located the printing medium further locking of printing the intra-area, avoid skidding and produce little removal between the printing medium after stepping and the roller, thereby produce deformation, influence printing quality, the roughness of the printing medium in the printing area has been guaranteed when making step-by-step control precision improve, make the printing effect better.

Further, the main driving roller 31 is a rubber covered roller, the rubber covered roller is a roller-shaped product which is made by taking metal or other materials as cores and covering rubber outside through vulcanization, and the rubber covered roller can increase the friction force between the roller and the printing medium, thereby being more beneficial to controlling the movement and the stop of the printing medium.

Further, final drive roller 31 with the top of the circumference of second brake roller 33 is not higher than print platform 2's upper surface, both can further for print media provide certain tension, avoid print media both sides perk around print platform 2 again for print media more levels with print platform 2's laminating more, avoids influencing printing quality.

Example 2:

on the basis of embodiment 1, the wallboard includes left front wallboard 92, right front wallboard 91 and left back wallboard 94, right back wallboard 95 that are located left front wallboard 92, right front wallboard 91 rear side respectively that are located braced frame 1's below left and right sides, first tension adjustment mechanism 5, second tension adjustment mechanism 6 installs between left front wallboard 92 and right front wallboard 91, drop feed mechanism 4 with receiving agencies 7 installs between left back wallboard 94 and right back wallboard 93, left front wallboard 92, right front wallboard 91 respectively with left back wallboard 94, right back wallboard 93 between detachable the connection.

In this embodiment, as shown in fig. 3, the left front wall panel 92 and the right front wall panel 91 are detachably connected to the left rear wall panel 94 and the right rear wall panel 93 through a connecting plate 10. Further, when the printer needs to be carried or transported, the left rear wall plate 94, the right rear wall plate 93, and the discharging mechanism 4 and the receiving mechanism 7 mounted on the left rear wall plate 94 and the right rear wall plate 93 can be detached and then transported separately, so that the printer is more convenient to carry and transport. Further, the distance between the left front wall plate 92 and the right front wall plate 91 and the distance between the left rear wall plate 94 and the right rear wall plate 93 are adjustable, and the distance can be set according to the site condition.

Further, a plurality of support rods are arranged between the left front wall plate 92 and the right front wall plate 91, and a plurality of support rods are arranged between the left rear wall plate 94 and the right rear wall plate 93.

Further, the guide roller 8 comprises a first guide roller 81 arranged between the discharging mechanism 4 and the first tension adjusting mechanism 5, a second guide roller 82 arranged between the first tension adjusting mechanism 5 and the main transmission mechanism 3, and a third guide roller 83, a fourth guide roller 84 and a fifth guide roller 85 which are sequentially arranged between the second tension adjusting mechanism 6 and the receiving mechanism 7.

Further, the height of the first guide roller 81 and the second guide roller 82 is higher than the highest position where the first tension adjusting mechanism 5 is movable.

Further, the height of the third guide roller 83 is higher than the highest position where the second tension adjusting mechanism 6 is movable.

Further, the fourth guide roller 84 is located rearward and downward of the third guide roller 83.

Further, the fifth guide roller 85 is positioned at the front lower part of the material receiving mechanism 7.

Further, the first guide roller 81, the second guide roller 82, the third guide roller 83, and the fourth guide roller 84 are installed between the left front wall plate 92 and the right front wall plate 91, and the fifth guide roller 85 is installed between the left rear wall plate 94 and the right rear wall plate 93.

Example 3:

in addition to the embodiment 1 or 2, the main driving roller 31 has a first motor 35 mounted on one side and an encoder 36 mounted on the other side.

Further, the encoder 36 is a photoelectric encoder or a magnetoelectric encoder;

further, referring to fig. 4, the encoder 36 includes a magnetic ring support 361 installed at an end of the main driving roller 31, the magnetic ring support 361 is installed with a magnetic grid ring 362, the supporting frame 1 is installed with a magnetic grid reading head 363 matched with the magnetic grid ring 362, the magnetic grid is one of the magnetoelectric encoders, and the detection accuracy of the magnetoelectric encoder is higher than that of the photoelectric encoder.

Further, a speed reducer is arranged between the first motor 35 and the main driving roller 31.

Further, a brake 34 is attached to at least one end of the first brake roller 32, and a brake 34 is attached to at least one end of the second brake roller 33.

Further, stoppers 34 are attached to both end portions of the first brake roller 32, respectively.

Further, stoppers 34 are attached to both end portions of the second brake roller 33, respectively.

In this embodiment, the encoder 36 is used to detect the stepping distance of the printing medium, the brake 34 is used to brake the first brake roller 32 and the second brake roller 33, and the guide rollers are locked and fixed, so that the printing medium in the printing area does not generate a small displacement, and the control accuracy of the stepping distance is higher.

Example 4:

on the basis of any one of the above embodiments, referring to fig. 3, the discharging mechanism 4 includes a discharging roller 41, a second motor 42 is installed at one end of the discharging roller 41, a speed reducer I43 is installed between the second motor 42 and the discharging roller 41, the discharging mechanism 4 includes a distance measuring sensor I44 for detecting the diameter of the printing medium wound on the discharging roller 41, and the distance measuring sensor I44 is connected to the speed reducer I43 and the second motor 42.

Further, the receiving mechanism 7 includes a receiving roller 71, a third motor 72 is installed at one end of the receiving roller 71, a speed reducer II73 is installed between the third motor 72 and the receiving roller 71, the receiving mechanism 7 includes a distance measuring sensor II74 for detecting the diameter of the printing medium wound on the receiving roller 71, and the distance measuring sensor II74 is connected with the speed reducer II73 and the third motor 72.

In this embodiment, the discharging roller 41 rotates at a proper rotation speed under the action of the second motor 42 and the speed reducer I43, the distance measuring sensor I44 is used for detecting the diameter of the discharging roller, and when the diameter changes, a feedback signal is sent to the second motor 42 and the speed reducer I43 to adjust the rotation speed of the discharging roller 41, so that the linear speed of the printing medium on the discharging roller 41 is maintained at a relatively constant value, and the problems that the discharging roller 41 impacts the printing medium at an excessively high speed and the discharging is not timely due to the excessively low speed, and the printing beat cannot be satisfied in the prior art are solved.

The operation principle and the function of the third motor 72, the speed reducer II73 and the distance measuring sensor II74 are the same as those of the discharging mechanism 4, and the description thereof will not be repeated here.

Example 5:

on the basis of any of the above embodiments, the first tension adjusting mechanism 5 includes a tension roller I51, the tension roller I51 is mounted on the wall panel through a bracket I52, a sliding slot I521 is disposed inside the bracket I52, two end portions of the tension roller I51 are mounted in the sliding slot I521 and can move in the sliding slot I521, and the first tension adjusting mechanism 5 includes a position sensor I53 for detecting the height of the tension roller I51.

In this embodiment, the position sensor I53 is used to detect the height of the tension roller I51, and when the tension roller I51 moves to the top in the chute I521, there is no space for movement, the position sensor I53 sends a feedback signal to the host computer, and the host computer controls the first step in embodiment 1 to be executed, so that the printing medium has a space for forward movement and the first tension adjusting mechanism 5 has a space for tension adjustment.

Further, bearings are respectively installed at two end parts of the tension roller I51, and the bearings are clamped in the sliding groove I521.

Example 6:

on the basis of any of the above embodiments, the second tension adjusting mechanism 6 includes a tension roller II61, the tension roller II61 is mounted on the wall panel through a bracket II62, a sliding groove II621 is provided inside the bracket II62, two end portions of the tension roller II61 are mounted in the sliding groove II621 and can move in the sliding groove II621, and the second tension adjusting mechanism 6 includes a position sensor II63 for detecting the height of the tension roller II 61.

In this embodiment, the position sensor II63 is used to detect the height of the tension roller II61, and when the tension roller II61 moves to the lowest end in the chute II621, there is no moving space, the position sensor II63 sends a feedback signal to the host computer, and the host computer controls to execute the first step in embodiment 1, so that the printing medium has a space for moving forward and the second tension adjusting mechanism 6 has a space for adjusting the tension.

Further, bearings are respectively installed at two end parts of the tension roller II61, and the bearings are clamped in the sliding grooves II 621.

Example 7:

on the basis of any one of the above embodiments, the supporting frame 1 is an integrally formed structure.

In this embodiment, braced frame 1 of integrated into one piece structure, through numerical control machine tool machining after the casting, the machining precision is installation accuracy promptly, does not have other assembly process errors, and the wallboard is through the panel for machining, and direct mount is in braced frame 1's below for the installation depth of parallelism of each roller is higher, has solved the condition of the printing medium skew that produces because of assembly error among the prior art, can save the setting of mechanism of rectifying.

It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein.

Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways, such as by rotating it 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.

In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A novel printing medium conveying device is characterized in that: the printing device comprises a main transmission mechanism (3) arranged on a supporting frame (1), wherein the main transmission mechanism (3) comprises a main transmission roller (31), a first brake roller (32) and a second brake roller (33), the main transmission roller (31) is used for driving a printing medium to move in a stepping mode, and the first brake roller (32) and the second brake roller (33) are respectively arranged behind and in front of a printing area and used for guiding and braking the printing medium; a discharging mechanism (4) is arranged on the rear side of the main transmission mechanism (3) and used for discharging a printing medium; a first tension adjusting mechanism (5) is arranged between the main transmission mechanism (3) and the discharging mechanism (4) and is used for adjusting the tension of the printing medium released by the discharging mechanism (4); a receiving mechanism (7) is arranged below the discharging mechanism (4) and used for recovering the printed printing medium; a second tension adjusting mechanism (6) is arranged between the main transmission mechanism (3) and the material receiving mechanism (7) and is used for adjusting the tension of the printing medium before entering the material receiving mechanism (7); a plurality of guide rollers (8) are arranged between the discharging mechanism (4) and the receiving mechanism (7) and are used for guiding and conveying the printing medium; the discharging mechanism (4), the first tension adjusting mechanism (5), the second tension adjusting mechanism (6), the receiving mechanism (7) and the guide roll (8) are respectively installed on the wallboard.

2. The novel printing medium conveying device according to claim 1, wherein: the wallboard is including being located left front wallboard (92), right front wallboard (91) of the below left and right sides of braced frame (1) and being located respectively left back wallboard (94), right back wallboard (95) of left side front wallboard (92), right front wallboard (91) rear side, first tension adjustment mechanism (5) second tension adjustment mechanism (6) install in between left side front wallboard (92) and right front wallboard (91), drop feed mechanism (4) with receiving agencies (7) install between left back wallboard (94) and right back wallboard (93), left side front wallboard (92) right front wallboard (91) respectively with detachable the connection between left side back wallboard (94), right back wallboard (93).

3. The novel printing medium conveying device according to claim 1, wherein: a first motor (35) is installed on one side of the main driving roller (31), and an encoder (36) is installed on the other side of the main driving roller.

4. The novel printing medium conveying device according to claim 1, wherein: a brake (34) is mounted on at least one end of the first brake roller (32), and a brake (34) is mounted on at least one end of the second brake roller (33).

5. The novel printing medium conveying device according to claim 1, wherein: drop feed mechanism (4) are including blowing roller (41), second motor (42) are installed to one end of blowing roller (41), second motor (42) with install speed reducer I (43) between blowing roller (41), drop feed mechanism (4) are including range finding sensor I (44), are used for detecting to convolute the diameter of the print medium on blowing roller (41), range finding sensor I (44) with speed reducer I (43), second motor (42) are connected.

6. The novel printing medium conveying device according to claim 1, wherein: the first tension adjusting mechanism (5) comprises a tension roller I (51), the tension roller I (51) is installed on the wallboard through a support I (52), a sliding groove I (521) is arranged on the inner side of the support I (52), two end parts of the tension roller I (51) are installed in the sliding groove I (521) and can move in the sliding groove I (521), and the first tension adjusting mechanism (5) comprises a position sensor I (53) for detecting the height of the tension roller I (51).

7. The novel printing medium conveying device according to claim 1, wherein: receiving agencies (7) are including receiving material roller (71), third motor (72) are installed to a tip of receiving material roller (71), third motor (72) with install speed reducer II (73) between receiving material roller (71), receiving agencies (7) are including range finding sensor II (74), are used for the detection to convolute receive the diameter of the print medium on material roller (71), range finding sensor II (74) with speed reducer II (73), third motor (72) are connected.

8. The novel printing medium conveying device according to claim 1, wherein: second tension adjustment mechanism (6) include tension roller II (61), tension roller II (61) pass through support II (62) install in on the wallboard, the inboard of support II (62) is equipped with spout II (621), the both ends of tension roller II (61) install in spout II (621) and can remove in spout II (621), second tension adjustment mechanism (6) include position sensor II (63), are used for detecting the height of tension roller II (61).

9. A novel printing medium conveying apparatus according to any one of claims 1 to 8, wherein: the guide roller (8) comprises a first guide roller (81) arranged between the discharging mechanism (4) and the first tension adjusting mechanism (5), a second guide roller (82) arranged between the first tension adjusting mechanism (5) and the main transmission mechanism (3), and a third guide roller (83), a fourth guide roller (84) and a fifth guide roller (85) which are sequentially arranged between the second tension adjusting mechanism (6) and the receiving mechanism (7).

10. A novel printing medium transporting apparatus according to any one of claims 1 to 9, wherein: the supporting frame (1) is of an integrally formed structure.

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